.main .top {
  height: 110px;
  padding: 100px 0;
  background-color: #fef3ef;
  text-align: center;
}
.main .top h1 {
  margin-bottom: 20px;
  font-size: 55px;
}
.main .top span {
  font-size: 18px;
  color: #f13b3a;
  font-weight: 500;
}
.main .top span a {
  position: relative;
  color: #333;
  margin-right: 40px;
}
.main .top span a:hover {
  color: #f13b3a;
}
.main .top span a::after {
  position: absolute;
  content: '';
  border-right: 2px solid #333;
  margin: 0 20px;
  height: 20px;
}

.main .center h2 {
  text-align: center;
  padding: 40px 0 20px;
  font-size: 32px;
  color: #333;
  font-weight: 400;
}

.main .center .info {
  display: flex;
  justify-content: center;
}

.main .center .info span {
  margin: 0 30px 20px;
  cursor: pointer;
  color: #333;
}

.main .center .info span:hover {
  color: #f13b3a;
}
.main .center {
  position: relative;
  min-height: 800px;
}
.main .center::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/bg-blog.jpg');
  background-size: cover;
  opacity: 0.6;
  z-index: -999;
}
.main .center .content {
  text-indent: 2em;
  width: 650px;
  padding: 0 0 40px;
  line-height: 30px;
  font-size: 18px;
  margin: 10px auto;
  white-space: pre-wrap;
}
.main .center .content .abstract {
  font-size: 16px;
  text-indent: 0%;
}
